Home / 4,865.30-7,298-1,578.40

Finding the Fourth Proportional to 4,865.30, 7,298 and 1,578.40

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Solution

The fourth proportional to 4,865.30, 7,298 and 1,578.40 is: 2,367.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,865.30 : 7,298 = 1,578.40 : x
  2. Step 2: Convert to fraction form
    4,865.30/7,298 = 1,578.40/x
  3. Step 3: Cross multiply
    4,865.30x = 7,298 × 1,578.40
  4. Step 4: Simplify right side
    4,865.30x = 11,519,163.20
  5. Step 5: Solve for x
    x = 11,519,163.20/4,865.30
  6. Step 6: Final answer
    x = 2,367.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.